# Element X has a half-life of 6000 years. If you a fossil and find only 12.5% of the original amount of element X, what would the age of the specimen be?

##### 1 Answer

Aug 22, 2017

#### Answer:

To get to 12.5% you need several halvings.

#### Explanation:

These are three consequtive halvings, each taking 6000 years.

So the specimen will be